Shoe-last.



' E. H. DUNBAR.

SHOE LAST. APPLICATION FILED MAY e. 1914.

1,121,236. Patented 1390.151914.'

EVERETT H. DUBA, OF LYNN, M ASSACHUSIEITTS.4

SHOE-LAST.

Specication of Letters Patent.

Patented Dec. 15, 1914.

Application filed May 9, 1914. Serial N0. 837,427.

To all whom t may concern n Be it known thatl, EvEnETT H. UN' a, acitizen of the United States, re ling at -ynrI the county of Essex andCommonwealth of Massachusetts, have invented a new and usefulImprovement in Shoe-Lasts,

of which the following is a specification.

My invention relates to lasts designed to be used for making shoeshaving a peculiarform of inner sole provided with ay hump or bossintended to support a weakened er fallen or broken arch of the lfoot ofthe wearer. To make such a shoe it is necessary to use a last having acorresponding depression or cavity in the bottom thereof, and it hasbeen the special object of my invention to make a last the sole-formingcavity of which may be varied or modified without permanently changingthe last, so that a person Whose foot needs corrective treatment mayprovide himself with a last suited to his foot size and have this lastused for the making of several shoes, the inner soles of which may vary,one from the other, according to the degree to which his foot isyieldingi to treatment and thereforerequires either more or less supportfrom the hump or boss on the inner sole ofthe shoe.

Myy invention may be more fully understood by reference to theaccompanying drawinggin which Figure l is a side View of my shoe. lastwith a part of the side broken away to show theI boss-forming member,Fig. 2 is a bottom View.

Similar letters refer both figures.

The wooden last A is made and shaped in the usual manner excepting thatits bottom is provided with a large cavity a which is normally coveredby the metal plate B which is bent so as top-resent a depression b inits under surface. This plate B is fastened by screws C to the woodenlast so that its edges are flush with the bottom thereof which isslightly cut away to receive the to similar parts in plate as shown inFig. l. The plate B is -also provided with perforations through whichtacks may bedriven when the upper leather is pulled over and tacked tothe bottom of the last according to the usual mauncr inmaking shoes. i

The metal plate B is preferably made of a strong, yet flexible,composition metal so that the depression Z) and the surface corr tour ofthe platel may be changed from time to time as may be desired. It isoften desii-able to form a slight elevation lat one or both sides of thecavity b in order that a corresponding depression may beniade on theside or sidesof the inner sole. of a shoe and it is apparent that thismay 'Ue easily accomplished by manipulation of the metal plate B whichis readily removable from the wooden last by simply withdrawing thescrews C; or another metal plate may be substituted with a surface ofcontour different from that formerly used. o

It will be apparent to those `familiar with the art of treatingdislocated arches of the foot that the plate B as shown in the drawing`is located for constructing a shoe for the treatment-of the anteriortransverse, or frontal arch. l do not, however. confine my invention tothis use alone, it being' plain that the plateA B 'may be so positioned,by a different placement of the cavity a, that a last may be adapted forconstructing a shoe for the treatment of the posterior transverse arch,or the longitudinal arch.

Havingthus fully described my invention whatl claim isl A shoe last.provided with a cavity in the bottom thereof and a removably mountedplate covering said cavity and having a surface of irregular contourarranged to be given different forms by depressing the same more or lessinto said cavity.

EVERETT H. DUNBAB. Witnesses FRANKLIN F. PHILLirs, Jr., LrNwooD E.SNowMAN.

